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Finding the Fourth Proportional to 360,244.09, 540,454.78 and 253,835.88

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Solution

The fourth proportional to 360,244.09, 540,454.78 and 253,835.88 is: 380,816.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,244.09 : 540,454.78 = 253,835.88 : x
  2. Step 2: Convert to fraction form
    360,244.09/540,454.78 = 253,835.88/x
  3. Step 3: Cross multiply
    360,244.09x = 540,454.78 × 253,835.88
  4. Step 4: Simplify right side
    360,244.09x = 137,186,812,972.10
  5. Step 5: Solve for x
    x = 137,186,812,972.10/360,244.09
  6. Step 6: Final answer
    x = 380,816.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.